Preventive Maintenance
This intervention aims to minimize unforeseen failures in an equipment, by evaluating according to pre-determined criteria, mechanical and electrical aspects of the machine with highly prepared equipment and technicians. With this prognosis of the machine’s general state, the maintenance teams can elaborate a detailed planning of future interventions, avoiding unexpected breakdown surprises.
Factory Overhaul of the Alternating Current Generator
- – Initial services / disassembly;
- Stator (overhaul);
- Rotor (overhaul);
- Mechanical services;
- Replacement of parts and components;
- Equipment reassembly;
- Exciter (overhaul);
- Report.
Wound AC Motor Overhaul
- Initial Services / Disassembly;
- Stator (Overhaul);
- Rotor (Overhaul);
- Other services to be performed;
- Equipment assembly.
Overhaul Caged AC Motor
- Disassembly of equipment;
- Stator (overhaul);
- Cage rotor (overhaul);
- Mechanical inspection / parts and components;
- Equipment Assembly.
Synchronous AC motor overhaul
- Initial services (inspection; measurement; disassembly; cleaning; tests and trials);
- Stator (overhaul);
- Rotor (overhaul);
- Mechanical inspection / parts and components;
- Equipment assembly.
Continuous Current Motor Overhaul
- Disassembly of equipment;
- Stator (Overhaul);
- Armature (overhaul);
- Mechanical inspection / parts and components;
- Brush holder assembly (revision and cleaning);
- Assembling the equipment;
- Final Report.
Field Service
In-Field Revision:
In situations where field intervention is convenient, we can transfer a workshop structure to our customers’ facilities. Specialized technicians are sent to the field to perform overhaul and/or corrective maintenance services.
DRY ICE CLEANING
The dry ice cleaning consists of CO2 blasting in the gaseous state by means of equipment suitable for the function, operated by technical experts in insulating systems of rotating machinery, for a safe and appropriate application. The presence of humidity and dirt in stator or rotor windings can decrease the insulation resistance, which can lead to equipment failure. Its great advantage is that it can be cleaned without the accumulation of moisture and with great efficiency. This process is recommended for washing generators and motors, especially for the application on stator and rotor windings, in addition to electrical panels or equipment that cannot accumulate humidity.
Preventive Maintenance
Nishi takes part in the 38th Brazilian Congress on Maintenance and Asset Management, exhibiting products, services and equipment
Nishi will be present from September 26 to 28, 2023 in Curitiba-PR at the 38th Brazilian Congress of Maintenance and Asset Management, exhibiting products, services and equipment. EXPOMAN is the largest trade fair in the
FREE WEBINAR: Generator failure – Root Cause Analysis (RCA) of 2 generators with insulation breakdown
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Nishi-san's tips on medium and high voltage motor and generator maintenance are back, now with live broadcasts and open participant Q&A. Watch and participate in this online event with lots of technical content and the
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